Claron Polyseal Double Acting Piston Seals DPDS

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Design:

Claron Style DPDS double acting piston seal is a 5 piece assembly consisting of a Nitrile Rubber sealing element supported by 2 thermoplastic elastomer headers with Acetal anti-extrusion bearing rings on the O.D. The complete assembly forms a highly robust sealing unit for use in high pressure applications where shock loads and pressure spikes are present. This seal is widely used in the mobile plant industry.

Maximum     Pressure
Max Speed                         Temp. Range
m/s                              -30°C to 100°C
0.50                                   325 Bar
0.15                                   600 Bar
NBR Rubber
DIN Hydraulic Fluid Description °C
H Mineral oil without additives 100
H-L Mineral Fluid with anti corrosion and anti ageing additives 100
H-LP Mineral oil as HL plus additives reducing wear, raising load 100
H-LPD Mineral oil as H-LP but with detergents and dispersants 100
H-V Mineral oil as H-LP plus improved viscosity temp. 100
HFA E Emulsions of mineral oil in water. Water content 80-95% 55
HFA S Synthetic oil in water. Water content 80-95% 55
HFB Emulsions of water in mineral oil. Water content 40% 60
HFC Aqueous polymer solutions. Water content 35% 60
HFD R Phosphoric acid ester based NS
HFD S Chlorinated hydrocarbon based NS
HFD T Mixtures of HFD R and HFD S NS
HEPG Polyglycol based NS
HETG Vegetable Oil based 60
HEES Fully synthetic ester based NS

Housing:

For surface finish and recommended lead in chamfers refer to the illustration below. For housing dimensions and machining tolerances refer to the catalogue page of selected seal. Refer to Appendix 4 for value of tolerance symbols.

Fitting:

Style DPDS is designed to be fitted onto a split piston as shown in the illustration below. The seal can be supplied split to ease fitting if required. For the seal to function correctly, it is important that care be taken in fitting the seal within its housing.

For a detailed checklist, refer to Appendix 3.

Part Number H 11 h 10            js 10 js 11           +0.6
+0.4
+0.2
-0.0
Min Max.
ØD1 Ød1 Ød2 Ød3 L1 L2 S C R1    R2
DPDS 228165 58,00 42,00 51,10 56,00 32,00 9,52 8,00 4,00 0,40
DPDS 393314 100,00 80,00 92,60 97,50 35,00 9,52 10,00 5,00 0,40
DPDS 433354 110,00 90,00 102,60 107,40 35,00 9,52 10,00 5,00 0,40
DPDS 492393 125,00 100,00 116,80 122,30 45,00 12,70 12,50 6,50 0,40

 

Part Number H 11 h 10               js 10 js11           +0.025
+0.015
+0.005
-0.000
Min Max.
ØD1 Ød1 Ød2 Ød3 L1 L2 S C R1    R2
DPDS 362287 3,625 2,875 3,330 3,530 1,375 0,375 0,375 0,187 0,008
DPDS 400325 4,000 3,250 3,710 3,900 1,375 0,375 0,375 0,187 0,008
DPDS 450350 4,500 3,500 4,180 4,400 1,750 0,500 0,500 0,218 0,015
DPDS 500400 5,000 4,000 4,675 4,900 1,750 0,500 0,500 0,218 0,015
DPDS 600500 6,000 5,000 5,675 5,900 1,750 0,500 0,500 0,218 0,015

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Claron Polyseals

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